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` E. E. VON TELL. WATER TIGHT SECURING 0F TARPAULINVS 0N SHIPS' HATCHES 0R SIMILAR COVERINGS.

APPLICATION FILED DEC. I9. 1918.

1,319,980. Patented 0d. 28,1919.

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E. E. VON TELL.

WATER TIGHT sEcumNG 0F TARPAULINS oN SHIPS HATcHEs on SIMILAR covERlNGs.

APPLICATION FI LED DEC. I9. |918.

Patented Oct. 28, 1919.

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E. E. VON TELL.

WATER TIGHT SECURING 0F TARPAULINS 0N SHIPS HATCHES 0R SIMILAR COVERINGS. l APPLICATION FILED DEC. I9. 1918. l

1,319,980. Patented oct. 28,1919.

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UNITED STATES PATENT OEETQE.

EDWARD ELIAS VON TELL, OF GOTTENBORG, SWEDEN.

WATER-TIGHT SEGUE/ING- OF TARPAULINS 0N SHIPS HATCHES OR SIMILAR COVERINGS.

Specification of Letters Patent.

Patented Oct. 28, 1919.

Application filed December 19, 1918. Serial No. 267,471.

To all whom t may concern:

Be it known that I, EDWARD ELIAS voN TELL, a subject of the King of Sweden, residing at Gottenborg, in the county of Gotten borg and Bohus and Kingdom of Sweden, have invented new and useful Improvements in the Water-Tight Securing of Tarpaulins on Ships Hatches or Similar Coverings, of which the following is a specification.

This invention relates to devices for the watertight securing of tarpaulins over ships hatches as well as for other similar purposes. Such devices are distinguished by the special feature, that along the outside of the hatch-coinbing batten-bars are adjustably applied in such a manner, that the tarpaulin is squeezed between the hatch-combing and the batten-bars, which are applied to the combings by means of hinges in the shape of small cranks each provided with two crank-pins, of which the one is attached to the combing and the other to the batten-bar. The batten-bars are moved lengthwise and at the same time laterally parallel to themselves closing up against the hatch-combing or receding therefrom by means of screwing-devices provided at the corners of the hatch-combing.

The indisputable advantages of these devices are however accompanied by some inconveniences, viz: They are applicable to hatch-combings with straight outlines only, and are not suitable for hatches with rounded corners. Neither are they suitable for very large hatches requiring two or more batten-bars along each side of the combings. Furthermore the screwing-devices provided at the corners of the combings are of a bulky character and liable to be damaged, when goods are moved along the deck close to the hatches.

This invention has for its object to improve the said arrangements in order to render them applicable to hatches with rounded corners as well as to hatches with square corners and also to hatches of such large size, that several hatten-bars are required along each side of the hatch. Further this invention has for its object to improve the screwing-devices for clamping the bars together. whereby said screwing-devices are provided at the hatch-combings in such a way. that they are protecf'ed against undue interference and injury. The invention is characterized principally therein, that on each side of the hatch-combing two, or any other even number of batten-bars are provided in pairs, each pair of bars being united by a screw. The two bars of each pair may be pulled together or pushed farther` apart, and at the same time pressed up against, or withdrawn from the hatch-combing by the tightening up or the unscrewing of the said screw. The batten-bars, which are provided on two opposite sides of the hatch-combing have their outer ends bent to fit against the rounded corner of the combing. The outer ends of the bars applied to the two other sides of the combing are straight. Another arrangement is to form all such bars, which extend out to the corners of the hatch with their outer ends bent to suit the rounded shape of the hatch-combing.

The invention also comprises a screwwrench of particular design adapted to suit the tightening-screws mentioned above.

The accompanying drawings illustrate some embodiments of the invention Viz.:

Figure l a plan-View of a ships hatch, to which the invention in question is applied, wherein the hatten-bars on the righ; hand and the lower sides are shown removed from the hatch-combings and on the left hand and the upper sides of the hatch tightened to the combings.

Fig. 2 a side-elevation of the hatch-combing with the tarpaulin fixed over it.

Fig. 3 a side-elevation of the hinged connection between the hatten-bar and the hatch-combing.

Fig. et a front-view of his connection.

Fig. 5 a view from above showing an embodiment of the screw-connection between two hatten-bars.

Fig. 6 a View from above showing ano her embodiment of this screw-connection with a portion of it cut away.

Fig. 7 a side-view of an embodiment of a screw-Spanner or wrench adapted to suit the screw-connections of the hatten-bars.

Fig. 8 is a .side-view of another embodiment of this wrench with parts of it cut away.

Fig. 9 a plan-view of the same wrench.

Around the hatch-combing l a number of angle-irons 2 are flXed in the ordinary way. To these angle irons suitable fixtures 4 are attached by means of screw-bolts 3,

a-nd the crank-shaped hinges 5 (see Fig. 8)

are adjustably connected to these fixtures l as well as to the hatten-bars. rihe battenbars 7 are provided with iixtures 6 for the said connection. A suiiicient number of these 'hatten-bars are provided all around the outside of the hatch-combing. The bars 7 are bent at their outer ends 8 to suit the rounded corners of the hatch-combing (see Fig. 1). These bars are in the embodiment illustrated in Figs. 1-5 connected together in pairs in such a manner, that the iixtures 6, which are attached to the adjacent extremities of the bars are provided with angular projections 9, and the ends 10 of these angular projections are connected by means of a screw-bolt 12 with nut 11.

The device operates in the following manner:

Then the nut 11 has been loose-ned, the two hatten-bars 7 are pushed apart, and the tarpaulin 18, which has previously been spread over the hatch, is lixed with its edges pulled down between the outside of the hatch-combing 1, and the inside of the batten-bars 7. Then the nut 11 is tightened up, which causes the pair of hatten-bars to be pulled together at the same time pressing them laterally against the tarpaulin 13 and the combing 1, whereby the tarpaulin is secured water-tight against the combing.

It will be understood, that this device may be used for hatches with square corners as well as for hatches with rounded corners, and also for very large hatches, where more than one pair of hatten-bars are required alo-ng each side oi' the hatch-combings.

Another embodiment of the screwing device is shown in Fig. 6. in this embodiment the screw-bolt 12 is substituted by a right hand threaded bolt 1-1 pivotally connected to the one hatten-bar and a lett hand threaded bolt 15, pivotally connected to the opposite hatten-bar in the same pair by means of eyes 17 with pins 16, applied to the fixtures 6 at the ends of the batten-bars 7. These eye-bolts 11 and 15 are joined by means of a right and left threaded sleeve or cylindrical nut 18. This device operates mainly in the same manner as the device shown in Fig. 5. l/Vhen the sleeve 18 is turned in the one or the other direction, the hatten-bars 7 are either pulled together and pressed laterally against the hatchcombing 1, or they are pushed apart and removed from the combing thus releasing the tarpaulin 13.

Compared to the device shown in Fig. 5 the device in Fig. 6 presents certain advantages. `When the nut 11 in the former device is tightened up, a bending strain is set up in the angle pieces 10, and owing to the rather long leverage of the angle pieces this strain may be carrie-d so tar as to cause the ends of the hatten-bars to become deformed. ln the device shown in Fig. 6 the leverage of the angle-fixtures 'is smaller than is the case according to Fig. 5, consequently they will not be subjected to such heavy bending-strains, and are not liable to be damaged by carelessness when tightening up the screws.

1n order to render the screwing-device in Fig. 6 as ehicient as possible, the sleeve 18 must be brought rather close to the battenbar 7. Hence it is accompanied with some ditiiculty to grip the sleeve with an ordinary tube-wrench; to avoid this draw-back an improved wrench of a particular design is used. 4This kind of wrench is of course applicable also in other cases, where the clearance around the tube to be gripped by the wrench is too small to admit of an ordinary tube-wrench being used. This improved wrench or screw-Spanner is characterized by a lever provided with a steel band, chain or any other iiexible member of some strong material, adapted to grip the tube by supporting the inner end of the lever against the tube. When swinging the lever in t-he one direction, the exible meinber vill bev tightened up around the tube, thus gripping it tightly, and by means of the friction set up carrying the tube along with the lever in its swinging movement.

Referring to Figs. 7 9 the lever is denoted by 20, and its forked prongs by 21, the ends 22 oi which are rounded and provided with teeth. lin the embodiment shown by Fig. 7 a pin 23 connected to the extremity of a thin steel strap or flexible member 21 is applied tol the wrench in a detachable manner. The rear end of this flexible member is bent into a sleeve and connected to another pin 25, the projecting ends of which are tted into suitable notches 26 in the two prongs 21 of the wrench, just inside of the toothed extremities 22. The Hexible band thus forms a loop provided to encircle the tube 27 to be operated. Then applied to the device shown in Fig. 6 the steel strap 24 is laid around the sleeve 18. rThe detachable pin 23 may appropriately be connected to the lever 2O by means of a chain 28 in order to prevent its being lost. when withdrawn out of the pin-holes. When the tube 27 (or the sleeve 18) is to be turned around by means of this wrench, the pin 25 is unhooked out of the notches 26, the {iexi'ble band 24 is laid around the tube 27 (or sleeve 18), and the pin 25 is again applied into the notches 26. Now the lever 20 is swung downward in the direction of the arrow in Fig. 7, which causes the extremities 22 of the wrench to be pressed against the tube 27 (sleeve 18) and the steel-strap 24 to be tightened up, so as to clench the tube, which will thus be carried around along with the wrench on account of frictional adhesion between the steel strap and the outer surface of the tu e.

Vhen employing this wrench for tubes of different diameters within certain limits the same strap 24; may be used, but if the diameter of the tube is very much smaller or larger than that, for which the length of the strap 24 is suited, this strap may be exchanged for a shorter or longer strap, as the case may require. This exchange is effected by extracting the pins 23 and 25 out of the loops at the extremities of the steel strap and applying them into the loops of another strap. This exchange is however a rather inconvenient proceeding. To avoid this drawback to the above mentioned device the improved embodiment illustrated in Figs, 8 and 9 is to be preferred. By means of this embodiment the same strap 2% may be employed for a more extensive variety of tube diameters, than what is possible by the embodiment shown in Fig. 7.

The improved embodiment o'f the wrench as shown in Figs. 8 and 9 is characterized by the special feature, that the pin 23 is adjustable in relation to the extremities 22 of the prongs 21 in such a manner, that the ends of the pin are held in a slot 29 in each prong 21. The opposite end of the strap 24 is also in this case provided with a pin 25 hooked into notches 26 in the wrench. The crosspiece 30 connects the two prongs 21 and carries two screws 31, the outer ends of which are shaped as eye-bolts and carry the ends of the pin 23. Further the screws 31 are provided with nuts 33 bearing against the crosspiece 30. By the screwing up or the slackening down of the nuts 33 the pin 23 is caused to slide in the slots 29, and thus the loop of the strap 2a can be expanded or contracted` as may be required to suit the circumference of the tube 27 (the sleeve 18).

This invention is not restricted to the embodiments here illustrated and described, as these may be modified in the one or the other way without encroaching upon the essential features of the invention.

Having thus particularly described and ascertained the nature of my said invention, and in what manner the same is to be performed, I declare that what I claim is:

1. A device of the class described, comprising a hatch-combing, cranks pivotally supported upon the hatch-combing, batten bars pivoted to said cranks, bolts pivoted to the confronting ends of said batten bars,

and a sleeve threadedly engaging each pair of bolts.

2. A device of the class described, comprising a hatch-combing, batten bars arranged at the sides of said hatch-combing and having the ends thereof curved to conform to the shape of the hatch-combing, threaded means for drawing any two batten bars toward each other, and means for supporting the batten bars to cause the same to move toward said hatch-combing upon the actuation of said threaded means. j 3. A device of the class described, as claimed in claim 2, wherein said threaded means comprises a pair of oppositely threaded members pivotally connecting the adjacent ends of any two batten bars.

4. A device of the class described, comprising a hatch-combing of angular formation, a pair of batten bars arranged at each side of the hatch-combing and having the ends thereof curved to conform to the corners of the hatch-combing, cranks for supporting said batten bars, oppositely threaded bolts pivotally connected to the confronting ends of each pair of batten bars, and a sleeve threadedly engaging said bolts.

5. A device of the class described, comprising a hatch-combing of angular formation, a pair of batten bars arranged at each side of the hatch-combing and having the ends thereof curved to conform to the corners of said hatch-combing, means for supporting the batten bars, and means for drawing the batten bars into engagement with the hatch-combing.

6. A device of the class described, comprising a rectangular hatch-combing, angle-irons secured to said hatch-combing, cranks pivoted on said angle-iron, batten bars pivotally connected to said cranks, said batten bars being arranged in pairs at each side of said hatch-combing and having the outer ends thereof curved to conform to the corners of the hatchcombing, projections formed on the inner ends of each pair of hatch-combings, oppositely threaded bolts pivotally connected to said projections, and a cylindrical sleeve tjhrleadedly engaging the oppositely threaded o ts.

In testimony whereof I have aixed my signature in presence of two witnesses.

EDW'ARD ELIAS voN TELL. Witnesses G. OSCAR OLssoN, SIGURD CARLSON.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents. Washington, D. C. 

